Kharytonov, O. et al. 2025. Analysis of the effectiveness of combining high-and low-thrust engines in Earth – Mars flights. Bulletin of Taras Shevchenko National University of Kyiv. Physics and Mathematics. 81, 2 (Dec. 2025), 142–145. DOI:https://doi.org/10.17721/1812-5409.2025/2.22.